This Atlas is organized to help cities and electricity utilities understand their own solar rooftop potential so that they may be better stewards of these resources. Each map presents the geographical distribution of solar potential across neighborhoods and parcels. The maps are accompanied by a description of how the solar potential varies across single- and multi-family residences, commercial and industrial parcels, and non-profit and government parcels since the economic benefits and policy incentives may vary accordingly. Because cost-effectiveness increases with the size of a solar installation, the atlas also presents, for each jurisdiction, the number of potential solar projects by size as well as the total rooftop potential.